package com.chongyuan.producer.util;

import javax.servlet.ServletContext;

import org.quickserver.net.AppException;
import org.quickserver.net.server.QuickServer;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.web.context.ServletContextAware;

public class SpringBeanUtil implements ApplicationContextAware, ServletContextAware {
	private static ApplicationContext applicationContext;

	/**
	 * 实现ApplicationContextAware接口的context注入函数, 将其存入静态变量.
	 */
	public void setApplicationContext(ApplicationContext applicationContext) {
		SpringBeanUtil.applicationContext = applicationContext; // NOSONAR
	}

	/**
	 * 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型.
	 */
	@SuppressWarnings("unchecked")
	public static <T> T getBean(String name) {
		checkApplicationContext();
		return (T) applicationContext.getBean(name);
	}

	/**
	 * 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型. 如果有多个Bean符合Class, 取出第一个.
	 */
	public static <T> T getBean(Class<T> requiredType) {
		checkApplicationContext();
		return applicationContext.getBean(requiredType);
	}

	/**
	 * 清除applicationContext静态变量.
	 */
	public static void cleanApplicationContext() {
		applicationContext = null;
	}

	private static void checkApplicationContext() {
		if (applicationContext == null) {
			throw new IllegalStateException("applicaitonContext未注入,请在applicationContext.xml中定义SpringContextHolder");
		}
	}

	@Override
	public void setServletContext(ServletContext context) {
		QuickServer myServer = new QuickServer("com.chongyuan.producer.quickServer.GpsCommandHandler");
		myServer.setClientData("com.chongyuan.producer.quickServer.GpsServerPoolableData");
		myServer.setPort(10290);
		myServer.setTimeout(60 * 1000 * 6);
		myServer.setName("GpsServer");
		try {
			myServer.startServer();
		} catch (AppException e) {
			System.err.println("error message: " + e);
		}
	}

}